Display device and thin television set
This display device includes a heat radiation member made of metal, configured to radiate heat generated from a light source portion, a rear housing arranged on the rear side of the heat radiation member, a substrate mounting member made of sheet metal, mounted with a circuit substrate, and a cover member covering the substrate mounting member from the rear side of the substrate mounting member in a state where the rear surface of the rear housing is exposed to the outside, while the heat radiation member is arranged to come into contact with the substrate mounting member.
1. A display device comprising:
a display portion having a rectangular shape;
a substrate mounting member mounted with a circuit substrate; and
a heat radiation member contacting with the substrate mounting member, wherein
in a longitudinal direction of the display portion, a length of the substrate mounting member is longer than a length of the heat radiation member, and
in a short-side direction of the display portion, the length of the substrate mounting member is shorter than the length of the heat radiation member.
2. The display device according to claim 1 , further comprising a light source portion, wherein
the light source portion is arranged at one side in the longitudinal direction of the display portion, and
in the short-side direction of the display portion, a length of a first portion of the heat radiation member is longer than a length of a second portion of the heat radiation member, which is further away from the light source portion than the first portion.
3. The display device according to claim 1 , wherein
as viewed in a direction perpendicular to a display surface of the display portion, an area of the substrate mounting member is larger than an area of the heat radiation member.
4. The display device according to claim 1 , wherein
as viewed in a direction perpendicular to a display surface of the display portion, the substrate mounting member and the heat radiation member include a region in which the substrate mounting member and the heat radiation member overlap with each other, and contact with each other in the region.
5. The display device according to claim 4 , wherein
as viewed in a direction perpendicular to a display surface of the display portion, a length of the region is shorter in the longitudinal direction of the display portion than in the short-side direction of the display portion.
6. The display device according to claim 4 , wherein
as viewed in a direction perpendicular to a display surface of the display portion, an area of the region is smaller than an area of the substrate mounting member other than the region.
7. The display device according to claim 4 , wherein
as viewed in a direction perpendicular to a display surface of the display portion, an area of the region is smaller than an area of the heat radiation member other than the region.
8. The display device according to claim 1 , wherein
the length of the substrate mounting member is shorter in the short-side direction of the display portion than in the longitudinal direction of the display portion.
9. The display device according to claim 1 , wherein
the length of the heat radiation member is longer in the short-side direction of the display portion than in the longitudinal direction of the display portion.
10. The display device according to claim 1 , further comprising a light source portion, wherein
the heat radiation member contacts with the light source portion.
11. The display device according to claim 1 , wherein
the circuit substrate is mounted on a side of the substrate mounting member opposite to the display portion.
12. The display device according to claim 1 , wherein
the substrate mounting member is arranged in a central portion of the display portion in the longitudinal direction of the display portion, and
the heat radiation member is arranged in a vicinity of an end of the display portion in the longitudinal direction of the display portion.
13. The display device according to claim 1 , further comprising a light source portion, wherein
the heat radiation member has an end bent in an L-shape on an opposite side to the substrate mounting member, and includes a light source mounting portion to mount the light source portion on the end bent in the L-shape.
14. The display device according to claim 1 , further comprising:
a rear housing arranged behind the heat radiation member; and
a cover member that covers the substrate mounting member from a rear side of the substrate mounting member in a state where a rear surface of the rear housing is exposed to an outside.
15. The display device according to claim 14 , wherein
the rear housing includes a region including an opening or a notch, and
the substrate mounting member and the cover member are mounted on the region including the opening or the notch of the rear housing.
16. The display device according to claim 14 , further comprising a light source portion, wherein
the light source portion is arranged on a side of the heat radiation member opposite to the substrate mounting member, and
a rear surface of the heat radiation member and a front surface of the rear housing are arranged to be opposed to each other through a space from a side of the heat radiation member closer to the light source portion to a side of the heat radiation member closer to the substrate mounting member.
17. The display device according to claim 14 , further comprising a light source portion, wherein
the rear housing has a rectangular outer shape,
the light source portion is arranged along an end side, extending in a vertical direction, of the rear housing having the rectangular outer shape,
the substrate mounting member is arranged in a vicinity of a central portion of the rear housing, and
the heat radiation member is formed to extend in a horizontal direction from a side of the heat radiation member closer to the light source portion to a side of the heat radiation member closer to the substrate mounting member.
18. The display device according to claim 14 , wherein
the cover member is separated from the circuit substrate, and covers the substrate mounting member from the rear side of the substrate mounting member.
19. The display device according to claim 14 , wherein
the substrate mounting member is held between the heat radiation member and the rear housing.